Water-proof cover of universal outdoor knife operation mechanism case

Abstract

A water-proof cover of a universal outdoor knife operation mechanism case comprises a disk-shaped cover body which is attached to the operation mechanism case tightly, a sleeve barrel which can be sleeved to an operation connecting rod is arranged on the upper portion of the disk-shaped cover body, at least one hose clamp which is used for fastening the sleeve barrel to the operation connecting rod is arranged on the sleeve barrel, the disk-shaped cover body is in a horn shape, the sleeve barrel is arranged on the disk-shaped cover body integrally, and two hose clamps are arranged on the sleeve barrel. The water-proof cover is simple in structure, convenient and reliable to use and suitable to knife operation mechanisms of different models, the situation that the water seeps from the knife operation mechanism case, which is caused by the fact that a rubber sealing ring is aging, is avoided, the service life of knife operation mechanisms is prolonged, the production cost and the maintenance cost are reduced, converting equipment can operate stably and safely, the defect probability is reduced, and the work efficiency is improved.

Description

technical field [0001] The invention relates to a waterproof cover of a general-purpose outdoor knife operating mechanism box, which belongs to a special waterproof device for an electric power system. Background technique [0002] In the prior art, in order to be waterproof, the general-purpose outdoor switch knife operating mechanism box is equipped with a rubber sealing ring at the position of the switch knife that is prone to water leakage or the rotating mechanism, and uses the sealing property of the rubber to strengthen the rain resistance of the switch knife mechanism; or for Special waterproof covers are made for different types of knife operating mechanisms. Their main disadvantages are: the rubber used by the former is easy to age, and loses its effect after a period of time, while the latter uses a special waterproof cover, which lacks universality and is expensive, so it cannot be widely used. [0003] In recent years, DC abnormalities in substations and freque...

AI Technical Summary

Problems solved by technology

Their main disadvantages are: the rubber used in the former is easy to age, and loses its effect after a period of time, while the latter uses a special waterproof cover, which lacks universality and is expensive, so it cannot be widely used.

[0003] In recent years, DC abnormalities in substations and frequent displacement of switch blade remote signals have occurred from time to time. According to the actual treatment situation on site, most of the DC abnormalities and frequent displacement of switch blade remote signals are due to the insulation of switch blade auxiliary contacts. The reason for the poor insulation of the switch knife auxiliary contact is mostly the water seepage of the switch knife mechanism box. This problem has always troubled the maintenance personnel, and the switch knife manufacturer has not come up with an effective solution.

Over a long period of time, with the aging of the rubber and surface oxidation, damage, or even cracking on the surface of the mechanism, water stains will enter the interior of the equipment, causing insulation damage and affecting the normal operation of the equipment.

[0005] In addition, the few existing special-purpose switch knife mechanism box waterproof covers are often of constant size, which can only be applied to one type of switch knife and cannot be popularized.

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